<!DOCTYPE html>
<html lang="en" xmlns:v-on="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Vue 指令学习</title>
</head>
<body>
    <!-- 2.html结构 -->
    <div id="app">
        <!-- click 点击 -->
        <input type="button" value="v-on指令" v-on:click="dolt">
        <input type="button" value="v-on指令简写" @click="dolt">
        <!-- 双击事件 -->
        <input type="button" value="双击事件" @dblclick="dolt">
        <!-- 点击事件 -->
        <h2 @click="changeFood">{{ food }}</h2>
    </div>
    <!-- 1.开发环境版本，包含了有帮助的命令行警告 -->
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    <script>
        //  3.创建Vue实例
        var app = new Vue({
            el:"#app",//el:挂载点 id选择器
            data:{
              food:"西兰花炒蛋"
            },
            methods:{
                dolt:function(){
                    alert("EnjoyToShare!");
                },
                changeFood:function(){
                    //console.log(this.food);
                    this.food += "好好吃!";
                }
            }
        })
    </script>
</body>
</html>
